A group of dolphins has struck up an unlikely friendship with killer whales off the B.C. coast, footage from OceanWise released Monday shows.
Researchers from OceanWise captured the footage of Pacific white-sided dolphins interacting with resident killer whales last summer, and although theysa国际传媒檙e not sure why, they have a few ideas.
Dolphins are prey for transient (mammal eating) killer whales, but they arensa国际传媒檛 part of the food chain for the fish-eating resident killer whales, said Dr. Lance Barrett-Lennard, senior scientist and director of the Marine Mammal Research Program at the Coastal Ocean Research Institute.
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sa国际传媒淲hatsa国际传媒檚 in it for the dolphins? It could be safety, for one thing,sa国际传媒� said Barrett-Lennard.
sa国际传媒淎 white-sided dolphin travelling with resident killer whales isnsa国际传媒檛 going to be hunted by transients because the [different species of killer whales] avoid each other, so this dolphin doesnsa国际传媒檛 have a care in the world.sa国际传媒�
The dolphins could also be checking out predators, Barrett-Lennard said, to be better prepared to face them later on.
sa国际传媒淏y spending time around killer whales they are learning more about them, about their speed and agility in the water, so it could help them avoid predation by other killer whales in the future,sa国际传媒� he said.
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